diff --git a/grc/demapping/gsm_universal_ctrl_chans_demapper.xml b/grc/demapping/gsm_universal_ctrl_chans_demapper.xml
new file mode 100644
index 0000000..48b0f83
--- /dev/null
+++ b/grc/demapping/gsm_universal_ctrl_chans_demapper.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0"?>
+<block>
+  <name>Universal ctrl chans demapper</name>
+  <key>gsm_universal_ctrl_chans_demapper</key>
+  <import>import gsm</import>
+  <make>gsm.universal_ctrl_chans_demapper($starts_fn_mod51, $channel_types)</make>
+
+  <param>
+    <name>starts_fn_mod51</name>
+    <key>starts_fn_mod51</key>
+    <value>[2,6,12,16,22,26,32,36,42,46]</value>
+    <type>int_vector</type>
+    <hide>part</hide>
+  </param>
+
+  <param>
+    <name>channel_types</name>
+    <key>channel_types</key>
+    <value>[1,2,2,2,2,2,2,2,2,2]</value>
+    <type>int_vector</type>
+    <hide>part</hide>
+  </param>
+
+  <sink>
+    <name>bursts</name>
+    <type>message</type>
+  </sink>
+  <source>
+    <name>bursts</name>
+    <type>message</type>
+  </source>
+</block>